Plant pot stacker



FIG. 1 is a perspective view of a plant pot stacker;

FIG. 2 is a top view of the plant pot stacker;

FIG. 3 is a bottom view of the plant pot stacker; and,

FIG. 4 is a side view of the plant pot stacker.

The broken lines illustrate portions of the plant pot stacker that formno part of the claimed design.

CLAIM The ornamental design for a plant pot stacker, as shown anddescribed.